The \(g\) -matrix folding model is a standard way of obtaining microscopic optical potential
for proton scattering and nucleus-nucleus scattering [1]}, [2]}, [3]}, [4]}, [5]}, [6]}, [7]}, [8]}, [9]}, [10]}.
Applying the folding model with the Melbourne \(g\) -matrix [2]}
for \(\sigma _{\rm I}\)  for Ne isotopes and \(\sigma _{\rm R}\)  for Mg isotopes,
we found that \(^{31}\) Ne is a deformed halo nucleus [12]},
and determined the matter radii \(r_{\rm m}\)  for Ne isotopes [13]} and
for Mg isotopes [14]}.
